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    • 4. 发明授权
    • Methods of heating energy storage devices that power downhole tools
    • 为井下工具供电的储能装置的加热方法
    • US07258169B2
    • 2007-08-21
    • US10806913
    • 2004-03-23
    • Michael L. FrippBruce H. Storm, Jr.Michael HuhRoger Lynn Schultz
    • Michael L. FrippBruce H. Storm, Jr.Michael HuhRoger Lynn Schultz
    • E21B4/04
    • E21B36/00E21B41/0085
    • An energy storage device for powering a downhole tool may be heated to an effective temperature to improve the operability of the energy storage device. The energy storage device may comprise, for example, a primary battery, a secondary battery, a fuel cell, a capacitor, or combinations thereof. The effective temperature to which the energy storage device is heated may be greater than an ambient temperature in the wellbore near the energy storage device. The energy storage device may be heated using various heat sources such as an ohmic resistive heater, a heat pump, an exothermic reaction, a power generator, a heat transfer medium, the energy storage device itself, a downhole tool, or combinations thereof. A thermal conductor may extend between the heat source and the energy storage device. Further, a thermal insulator may at least partially surround the heat source and the energy storage device.
    • 用于为井下工具供电的能量存储装置可以被加热到有效温度以提高储能装置的可操作性。 能量存储装置可以包括例如一次电池,二次电池,燃料电池,电容器或其组合。 能量储存装置被加热到的有效温度可能大于能量存储装置附近的井眼中的环境温度。 可以使用诸如欧姆电阻加热器,热泵,放热反应,发电机,传热介质,能量存储装置本身,井下工具或其组合的各种热源来加热能量存储装置。 热导体可以在热源和能量存储装置之间延伸。 此外,绝热体可以至少部分地围绕热源和能量存储装置。
    • 8. 发明授权
    • Early evaluation system with pump and method of servicing a well
    • 泵的早期评估系统和维修井的方法
    • US5799733A
    • 1998-09-01
    • US941883
    • 1997-09-30
    • Paul David RinggenbergNeal Gregory SkinnerCurtis Edgar WendlerRoger Lynn SchultzRobert W. SrubarMargaret Cowsar Waid
    • Paul David RinggenbergNeal Gregory SkinnerCurtis Edgar WendlerRoger Lynn SchultzRobert W. SrubarMargaret Cowsar Waid
    • E21B21/10E21B27/02E21B33/124E21B43/12E21B49/08
    • E21B49/088E21B21/103E21B27/02E21B33/1243E21B43/121E21B49/081E21B49/083
    • An early evaluation system with pump for servicing a well and taking fluid samples and measurements. In each of the embodiments, a formation pump is actuated to flow fluid from the well formation below a packer element engaged with the borehole into a sampling tube. Fluid samplers and recording instruments may be in communication with the sampling tube. In one embodiment, the pump is mechanically actuated by rotation of the tool string. In another embodiment, the pump is hydraulically actuated and has a hydraulic motor connected thereto. In this hydraulically acutated embodiment, fluid pumped down the tool string actuates the hydraulic motor and thereby further actuates the pump. Other pump embodiments are also disclosed. In still another embodiment, the apparatus may be incorporated into a drill string so that a drilling operation may be carried out and immediately followed by a fluid evaluation operation. In this latter embodiment, circulating valves disposed in the apparatus allow fluid to be pumped downwardly through the drill bit when in a first position and then allow fluid samples to be taken by actuation of the pump when in a second position after the packer elements are engaged. Methods of drilling and servicing a well and conducting a bubble point determination utilizing the apparatus are also disclosed.
    • 一个具有泵的早期评估系统,用于维修井并进行流体样品和测量。 在每个实施例中,地层泵被致动以将流体从井眼结合井下的井下流入采样管。 流体采样器和记录仪器可能与采样管连通。 在一个实施例中,通过工具串的旋转机械地致动泵。 在另一个实施例中,泵是液压致动的并且具有连接到其上的液压马达。 在这种液压引导的实施例中,沿着工具串向下泵送的流体驱动液压马达,从而进一步致动泵。 还公开了其它泵的实施例。 在另一个实施例中,该装置可以结合到钻柱中,使得可以执行钻井操作并且紧接着进行流体评估操作。 在后一实施例中,设置在该装置中的循环阀在处于第一位置时允许流体被向下泵送通过钻头,然后当在封隔器元件接合之后处于第二位置时通过致动泵来采取流体样品 。 还公开了使用该设备钻井和维修井并进行泡点确定的方法。
    • 10. 发明授权
    • Methods of calibrating pressure and temperature transducers and associated apparatus
    • 校准压力和温度传感器及相关设备的方法
    • US06594602B1
    • 2003-07-15
    • US09298691
    • 1999-04-23
    • Roger Lynn Schultz
    • Roger Lynn Schultz
    • G01F2500
    • G01D18/008G01D3/022G01D18/00
    • A calibration method provides enhanced accuracy in calibrating outputs of sensors. In embodiments described herein, the outputs of one or more sensors are input to a neural network and the neural network is trained to generate calibrated outputs in response thereto. In one method, the neural network is trained to simulate the output of a known accurate reference sensor in response to input to the neural network of the output of a subject sensor. In another method, the neural network is trained to simulate the output of a known accurate reference sensor in response to input to the neural network of the output of a subject sensor and the output of a second sensor. Additional methods are provided which compensate for changes in a stimulus applied to a sensor, the output which is indicative of another stimulus.
    • 校准方法提高了校准传感器输出的精度。 在本文所描述的实施例中,一个或多个传感器的输出被输入到神经网络,并且训练神经网络以响应于此生成校准输出。 在一种方法中,训练神经网络以响应于对主体传感器的输出的神经网络的输入来模拟已知精确参考传感器的输出。 在另一种方法中,训练神经网络以响应于对主体传感器的输出的神经网络的输入和第二传感器的输出来模拟已知精确参考传感器的输出。 提供补偿施加到传感器的刺激变化的附加方法,该输出指示另一刺激。